Yini imbangela PCB ukwehluleka?

Izizathu ezintathu zimboza ukwehluleka okuningi:

Inkinga yokwakhiwa kwe-PCB

Izizathu zemvelo

age

Izinkinga zokuklama ze-PCB zifaka izinkinga ezahlukahlukene ezingenzeka ngesikhathi senqubo yokuklama nokukhiqiza, njenge:

Ukubekwa kwento – Ithola ngokungalungile izinto

Isikhala esincane kakhulu ebhodini esidala ukushisa

Izinkinga zekhwalithi yezingxenye, njengokusebenzisa ishidi lensimbi nezingxenye zomgunyathi

Ukushisa okweqile, uthuli, umswakama kanye nokukhishwa kwe-electrostatic ngesikhathi somhlangano kungezinye zezici zemvelo ezingadala ukwehluleka.

Ukumisa ukwehluleka okuhlobene nobudala kunzima kakhulu futhi kwehlela esivumelwaneni sokuvikela kunokulungisa. Kepha uma ingxenye ethile yehluleka, kubiza kakhulu ukubuyisela ingxenye endala ngenye entsha kunokulahla lonke ibhodi lesifunda.

Yini okufanele ngiyenze lapho i-PCB yehluleka

Ukuhluleka kwe-PCB. Kuzokwenzeka. Isu elihle kakhulu ukugwema ukuphinda ngazo zonke izindleko.

Ukwenza ukuhlaziywa kwamaphutha kwe-PCB kungakhomba inkinga ngqo nge-PCB futhi kusize ukuvimbela inkinga efanayo ekuhlaseleni amanye amabhodi wamanje noma amabhodi azayo. Lezi zivivinyo zingahlukaniswa zibe izivivinyo ezincane, kufaka phakathi:

Ukuhlaziywa kwesigaba seMicroscopic

Ukuhlolwa kwe-PCB weldability

Ukuhlolwa kokungcola kwe-PCB

I-SEM ebonakalayo / yesibonakhulu

Ukuhlolwa kwe-X ray

Ukuhlaziywa kwesilayidi esincanyana

Le ndlela ifaka ukususa ibhodi lesifunda ukuveza nokuhlukanisa izinto futhi kusiza ukuthola izinkinga ezibandakanya:

Izingxenye ezinamaphutha

Izikhindi noma izikhindi

Ukugeleza kwe-Reflow kuholela ekuhlulekeni kokucubungula

Thermal ukwehluleka mechanical

Izinkinga ezibonakalayo

Ukuhlolwa kweWeldability

Lokhu kuhlolwa kusetshenziselwa ukuthola izinkinga ezibangelwa i-oxidation nokusetshenziswa kabi kwefilimu ye-solder. Isivivinyo siphindaphinda oxhumana naye we-solder / impahla ukuhlola ukuthembeka okuhlangene kwe-solder. Ilusizo ku:

Linganisa ama-solders nama-flux

izilinganiso

Ikhwalithi yokulawula

Ukuhlolwa kokungcola kwe-PCB

Lokhu kuhlolwa kuthola ukungcola okungadala ukonakala, ukugqwala, ukusansimbi nezinye izinkinga ekuxhumaneni okuxhumene nomthofu.

Isibonakhulu se-Optical / SEM

Le ndlela isebenzisa ama-microscopes anamandla ukuthola izinkinga zokushisela nezokuhlangana.

Le nqubo inembile futhi iyashesha. Lapho kudingeka ama-microscopes anamandla kakhulu, kungasetshenziswa ukuskena i-electron microscopy. Inikeza ukukhulisa okungafika ku-120,000X.

Ukuhlolwa kwe-X-ray

Ubuchwepheshe buhlinzeka ngezindlela ezingezona zokuhlasela zokusebenzisa ifilimu, i-real-time noma i-3D X-ray systems. Ingathola ukukhubazeka kwamanje noma okungahle kube khona okubandakanya izinhlayiya zangaphakathi, izembozo zekhava lokuvala, ubuqotho be-substrate, njll.

Ungakugwema kanjani ukwehluleka kwe-PCB

Kuhle ukwenza ukuhlaziywa kwamaphutha kwe-PCB nokulungisa izinkinga ze-PCB ukuze zingaphindi zenzeke. Kungaba ngcono ukugwema ukuwohloka kwasekuqaleni. Kunezindlela eziningana zokugwema ukwehluleka, kufaka phakathi:

Ukumboza okuhambisanayo

Ukumboza okuhambisanayo kungenye yezindlela eziyinhloko zokuvikela i-PCB othulini, ukungcola kanye nomswakama. Lokhu kumbozwa kusuka ku-acrylic kuya kuma-epoxy resins futhi kungafakwa ngezindlela eziningi:

ibhulashi

spray

ukhulelwe

Ukumboza okukhethiwe

Ukuhlolwa kokukhishwa kwangaphambili

Ngaphambi kokuthi ihlanganiswe noma ishiye umenzi wayo, kufanele ihlolwe ukuqinisekisa ukuthi ayiphumeleli uma isiyingxenye yethuluzi elikhudlwana. Ukuhlola ngesikhathi somhlangano kungathatha izindlela eziningi:

Ukuhlolwa kwe-In-line (ICT) kunika amandla ibhodi lesifunda ukwenza kusebenze isifunda ngasinye. Sebenzisa kuphela lapho kulindelwe ukubuyekezwa komkhiqizo okumbalwa.

Ukuhlolwa kwephini endizayo akukwazi ukunika amandla ibhodi, kepha kushibhile kune-ICT. Kuma-oda amakhulu, kungahle kungabizi kakhulu kune-ICT.

Ukuhlolwa okuzenzakalelayo kokukhanya kungathatha isithombe se-PCB bese kuqhathanisa isithombe nomdwebo onemininingwane, kumaka ibhodi lesifunda elingahambelani nomdwebo wesikimu.

Ukuhlolwa kokuguga kuthola ukwehluleka kusenesikhathi futhi kusungule umthamo wokulayisha.

Ukuhlolwa kwe-X-ray okusetshenziselwa ukuhlolwa kwangaphambi kokukhishwa kuyafana nokuhlolwa kwe-X-ray okusetshenziselwa ukuhlolwa kokuhlola ukwehluleka.

Ukuhlolwa kokusebenza kuqinisekisa ukuthi ibhodi lizoqala. Olunye uvivinyo olusebenzayo lubandakanya i-reflectometry yesizinda sesikhathi, ukuhlolwa kwe-peel kanye ne-solder float test, kanye nokuhlolwa kwe-solderability okuchazwe ngaphambili, ukuhlolwa kokungcola kwe-PCB kanye nokuhlaziywa kwe-microsection.

Isevisi Yangemva Kokuthengisa (AMS)

Ngemuva kokuthi umkhiqizo ushiye umkhiqizi, akusiyo njalo ukuphela kwensiza yomkhiqizi. Abakhiqizi abaningi bezinkontileka ze-elekthronikhi banikela ngezinsizakalo zangemva kokuthengisa ukuqapha nokulungisa imikhiqizo yabo, ngisho nalabo abangazange bakhiqize ekuqaleni. I-AMS iyasiza ezindaweni eziningi ezibalulekile, kufaka phakathi:

Hlanza, uvivinye futhi uhlole ukuvikela izingozi ezihlobene nemishini kanye nokwehluleka

Ukuxazulula inkinga ngokusezingeni elenzelwe ukusebenza nge-elekthronikhi kuleveli yento

Ukulungiswa kabusha, ukulungiswa kanye nokugcinwa kabusha kwemishini emidala, ukwenziwa kabusha kwezingxenye ezikhethekile, ukuhlinzeka ngezinsizakalo zensimu nokubuyekeza nokubuyekeza isoftware yomkhiqizo

Ukuhlaziywa kwedatha ukutadisha umlando wensizakalo noma imibiko yokuhlaziya ukwehluleka ukuthola izinyathelo ezilandelayo

Ukuphathwa okuphelelwe yisikhathi

Ukuphathwa kokuphelelwa yisikhathi kuyingxenye ye-AMS futhi kukhathazekile ukuvimbela ukungahambisani kwezinto ezithile kanye nokwehluleka okuhlobene nobudala.

Ukuqinisekisa ukuthi imikhiqizo yakho inomjikelezo wempilo omude kunayo yonke, ochwepheshe abaphelelwe yisikhathi bazoqinisekisa ukuthi kunikezwa izingxenye ezisezingeni eliphakeme futhi kulandelwa nemithetho yezimbiwa.

Futhi, cabanga ukufaka esikhundleni sekhadi lesifunda ku-PCB njalo eminyakeni eyi-X noma ukubuyisa izikhathi ze-X. Insizakalo yakho ye-AMS izokwazi ukusetha ishejuli yokufaka esikhundleni sayo ukuqinisekisa ukusebenza ngokushelela kwe-elekthronikhi. Kungcono ukufaka ezinye izingxenye esikhundleni sokuzilinda ziphule!

Ngabe unquma kanjani isivivinyo esifanele

Uma i-PCB yakho yehluleka, manje uyazi ukuthi yini okufanele uyenze ngokulandelayo nokuthi ungayivimba kanjani. Kodwa-ke, uma ufuna ukunciphisa ubungozi bokwehluleka kwe-PCB, sebenza nomenzi wekhwalithi yekhwalithi onolwazi lokuhlola kanye ne-AMS.